DE19807700A1 - Fällungskieselsäuregranulate - Google Patents
FällungskieselsäuregranulateInfo
- Publication number
- DE19807700A1 DE19807700A1 DE1998107700 DE19807700A DE19807700A1 DE 19807700 A1 DE19807700 A1 DE 19807700A1 DE 1998107700 DE1998107700 DE 1998107700 DE 19807700 A DE19807700 A DE 19807700A DE 19807700 A1 DE19807700 A1 DE 19807700A1
- Authority
- DE
- Germany
- Prior art keywords
- precipitated silica
- dust
- silica granules
- suspension
- granules
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 282
- 239000000377 silicon dioxide Substances 0.000 title claims description 135
- 239000008187 granular material Substances 0.000 title claims description 57
- 239000000725 suspension Substances 0.000 claims description 47
- 239000000428 dust Substances 0.000 claims description 46
- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 claims description 23
- 235000019743 Choline chloride Nutrition 0.000 claims description 23
- 229960003178 choline chloride Drugs 0.000 claims description 23
- SGMZJAMFUVOLNK-UHFFFAOYSA-M choline chloride Chemical compound [Cl-].C[N+](C)(C)CCO SGMZJAMFUVOLNK-UHFFFAOYSA-M 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 15
- 238000001694 spray drying Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 229940088594 vitamin Drugs 0.000 claims description 3
- 229930003231 vitamin Natural products 0.000 claims description 3
- 239000011782 vitamin Substances 0.000 claims description 3
- 235000013343 vitamin Nutrition 0.000 claims description 3
- 239000013543 active substance Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 22
- 239000000843 powder Substances 0.000 description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 15
- 239000012065 filter cake Substances 0.000 description 14
- 239000007787 solid Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 10
- 238000001035 drying Methods 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 235000019353 potassium silicate Nutrition 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- ZAKOWWREFLAJOT-CEFNRUSXSA-N D-alpha-tocopherylacetate Chemical compound CC(=O)OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-CEFNRUSXSA-N 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 4
- ZAKOWWREFLAJOT-UHFFFAOYSA-N d-alpha-Tocopheryl acetate Natural products CC(=O)OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229940042585 tocopherol acetate Drugs 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- -1 vitamin E acetates Chemical class 0.000 description 3
- 229930003427 Vitamin E Natural products 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 229940046009 vitamin E Drugs 0.000 description 2
- 235000019165 vitamin E Nutrition 0.000 description 2
- 239000011709 vitamin E Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
- C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3009—Physical treatment, e.g. grinding; treatment with ultrasonic vibrations
- C09C1/3036—Agglomeration, granulation, pelleting
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/19—Oil-absorption capacity, e.g. DBP values
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998107700 DE19807700A1 (de) | 1998-02-24 | 1998-02-24 | Fällungskieselsäuregranulate |
| EP99103462A EP0937755A1 (de) | 1998-02-24 | 1999-02-23 | Fällungskieselsäuregranulate |
| BR9900799A BR9900799A (pt) | 1998-02-24 | 1999-02-24 | Grânulos de sìlica precipitada |
| CN 99105477 CN1233586A (zh) | 1998-02-24 | 1999-02-24 | 沉淀的二氧化硅颗粒 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998107700 DE19807700A1 (de) | 1998-02-24 | 1998-02-24 | Fällungskieselsäuregranulate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19807700A1 true DE19807700A1 (de) | 1999-08-26 |
Family
ID=7858731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1998107700 Withdrawn DE19807700A1 (de) | 1998-02-24 | 1998-02-24 | Fällungskieselsäuregranulate |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0937755A1 (pt) |
| CN (1) | CN1233586A (pt) |
| BR (1) | BR9900799A (pt) |
| DE (1) | DE19807700A1 (pt) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010012638A1 (de) * | 2008-08-01 | 2010-02-04 | Evonik Degussa Gmbh | Neuartige fällungskieselsäuren für trägeranwendungen |
| EP2881367A1 (de) | 2013-12-09 | 2015-06-10 | Evonik Industries AG | Verfahren zur Reduzierung des Staubanteiles von Metalloxidgranulaten |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2776537B1 (fr) † | 1998-03-30 | 2000-05-05 | Rhodia Chimie Sa | Composition comprenant un liquide absorbe sur un support a base de silice precipitee |
| DE19860441A1 (de) * | 1998-12-28 | 2000-07-06 | Degussa | Wirkstoffadsorbate auf Basis von Kieselsäure |
| DE10112441A1 (de) * | 2001-03-15 | 2002-09-19 | Degussa | Kieselsäure durch Fällung mit konstanter Alkalizahl und deren Verwendung |
| DE10330221A1 (de) | 2002-08-03 | 2004-02-12 | Degussa Ag | Hochdispersible Fällungskieselsäure |
| DE10258857A1 (de) * | 2002-12-17 | 2004-07-08 | Degussa Ag | Pyrogen hergestelltes Siliciumdioxid und Dispersion hiervon |
| DE102005043202A1 (de) | 2005-09-09 | 2007-03-15 | Degussa Ag | Fällungskieselsäuren mit besonderer Porengrößenverteilung |
| DE102005043201A1 (de) | 2005-09-09 | 2007-03-15 | Degussa Ag | Fällungskieselsäuren mit einer besonderen Porengrößenverteilung |
| DE102005061965A1 (de) | 2005-12-23 | 2007-07-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Oxidische Agglomeratpartikel, Verfahren zur Herstellung von Nanokompositen sowie deren Verwendung |
| DE102008017747A1 (de) | 2008-04-07 | 2009-10-08 | Evonik Degussa Gmbh | Gefällte Kieselsäuren als Verstärkerfüllstoff für Elastomermischungen |
| DE102008017731A1 (de) | 2008-04-07 | 2009-10-08 | Continental Aktiengesellschaft | Kautschukmischung |
| DE102009001512A1 (de) | 2009-03-12 | 2010-09-16 | Evonik Degussa Gmbh | Herstellung von hochreinen Suspensionen enthaltend gefällte Kieselsäuren durch Elektrodialyse |
| PL2448865T3 (pl) | 2009-07-03 | 2017-05-31 | Evonik Degussa Gmbh | Hydrofilowe krzemionki jako wypełniacz dla formulacji kauczuku silikonowego |
| DE102010003204A1 (de) * | 2010-03-24 | 2011-12-15 | Evonik Degussa Gmbh | Grobteilige Trägerkieselsäuren |
| DE102012211121A1 (de) | 2012-06-28 | 2014-01-02 | Evonik Industries Ag | Granuläre, funktionalisierte Kieselsäure, Verfahren zu deren Herstellung und deren Verwendung |
| US20140272012A1 (en) * | 2013-03-15 | 2014-09-18 | J.M. Huber Corporation | Silica Based Salt Solution Delivery System |
| DE102014113411A1 (de) | 2014-09-17 | 2016-03-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Anorganische, Silica-basierte Feststoff-Schaumpartikel mit geschlossenen Innenporen, ihre Herstellung und ihre Verwendung als Füll- oder Speicherstoff |
| DE102015214344A1 (de) | 2015-07-29 | 2017-02-02 | Evonik Degussa Gmbh | Verfahren zur Herstellung von Fällungskieselsäuren und Verfahren zur Messung des Schonabriebfaktors |
| EP3394161A4 (en) | 2015-12-23 | 2019-08-14 | Tata Chemicals Limited | PRECIPITATION SILICA |
| EP3393971B1 (en) | 2015-12-23 | 2021-10-20 | Tata Chemicals Limited | A process for preparing precipitated silica |
| WO2018019599A1 (de) | 2016-07-29 | 2018-02-01 | Evonik Degussa Gmbh | Verfahren zur herstellung eines hydrophoben, wärmedämmenden materiales |
| US11565974B2 (en) | 2017-01-18 | 2023-01-31 | Evonik Operations Gmbh | Granular thermal insulation material and method for producing the same |
| DE102017209782A1 (de) | 2017-06-09 | 2018-12-13 | Evonik Degussa Gmbh | Verfahren zur Wärmedämmung eines evakuierbaren Behälters |
| WO2019170264A1 (de) | 2018-03-05 | 2019-09-12 | Evonik Degussa Gmbh | Verfahren zur herstellung eines aerogelmaterials |
| US12030810B2 (en) | 2018-07-17 | 2024-07-09 | Evonik Operations Gmbh | Thermal insulating composition based on fumed silica granulates, processes for its preparation and uses thereof |
| EP3597615A1 (en) | 2018-07-17 | 2020-01-22 | Evonik Operations GmbH | Granular mixed oxide material and thermal insulating composition on its basis |
| JP7086266B2 (ja) | 2018-07-18 | 2022-06-17 | エボニック オペレーションズ ゲーエムベーハー | シリカをベースとする成形断熱体を周囲圧力で疎水化する方法 |
| KR20230005300A (ko) | 2020-04-30 | 2023-01-09 | 에보니크 오퍼레이션즈 게엠베하 | 증가된 알칼리 안정성을 갖는 실리카 에어로겔 |
| EP3954743A1 (de) | 2020-08-12 | 2022-02-16 | Evonik Operations GmbH | Verwendung von siliziumdioxid zur verbesserung der leitfähigkeit von beschichtungen |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2447613B2 (de) * | 1974-10-05 | 1976-08-26 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zur herstellung einer spruehbaren faellungskieselsaeuresuspension |
| DE3144299A1 (de) * | 1981-11-07 | 1983-05-19 | Degussa Ag, 6000 Frankfurt | Faellungskieselsaeuren mit hoher struktur und verfahren zu ihrer herstellung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7014811A (pt) * | 1970-10-09 | 1972-04-11 | ||
| US4617294A (en) * | 1985-04-22 | 1986-10-14 | Ppg Industries, Inc. | Animal feed supplement |
| FR2631620B1 (fr) * | 1988-05-19 | 1990-07-27 | Rhone Poulenc Chimie | Nouvelle silice precipitee absorbante et composition a base de cette s ilice |
| FR2646673B1 (fr) * | 1989-05-02 | 1991-09-06 | Rhone Poulenc Chimie | Silice sous forme de bille, procede de preparation et son utilisation au renforcement des elastomeres |
| FR2649089B1 (fr) * | 1989-07-03 | 1991-12-13 | Rhone Poulenc Chimie | Silice a porosite controlee et son procede d'obtention |
| IL117915A (en) * | 1995-04-19 | 2001-05-20 | Ppg Ind Ohio Inc | Amorphous precipitated silica having large liquid carrying capacity |
-
1998
- 1998-02-24 DE DE1998107700 patent/DE19807700A1/de not_active Withdrawn
-
1999
- 1999-02-23 EP EP99103462A patent/EP0937755A1/de not_active Withdrawn
- 1999-02-24 CN CN 99105477 patent/CN1233586A/zh active Pending
- 1999-02-24 BR BR9900799A patent/BR9900799A/pt not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2447613B2 (de) * | 1974-10-05 | 1976-08-26 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zur herstellung einer spruehbaren faellungskieselsaeuresuspension |
| DE3144299A1 (de) * | 1981-11-07 | 1983-05-19 | Degussa Ag, 6000 Frankfurt | Faellungskieselsaeuren mit hoher struktur und verfahren zu ihrer herstellung |
Non-Patent Citations (2)
| Title |
|---|
| HERBENER, R.: "Staubarme Pulver durch Sprühtrocknen - Erfahrungen mit neueren Techniken" in: Chem.-Ing.-Tech. 59 (1987), Nr. 2, S. 112-117 * |
| Schriftenreihe Pigmente Nr. 30 Degussa, "Synthetische Kieselsäure, ein moderner Hilfsstoff in der Futtermittel-Industrie", Ausgabe Juli 1977 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010012638A1 (de) * | 2008-08-01 | 2010-02-04 | Evonik Degussa Gmbh | Neuartige fällungskieselsäuren für trägeranwendungen |
| DE102008035867A1 (de) | 2008-08-01 | 2010-02-04 | Evonik Degussa Gmbh | Neuartige Fällungskieselsäuren für Trägeranwendungen |
| US8962519B2 (en) | 2008-08-01 | 2015-02-24 | Evonik Degussa Gmbh | Precipitated silicic acids for support applications |
| EP2881367A1 (de) | 2013-12-09 | 2015-06-10 | Evonik Industries AG | Verfahren zur Reduzierung des Staubanteiles von Metalloxidgranulaten |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0937755A1 (de) | 1999-08-25 |
| BR9900799A (pt) | 2001-03-13 |
| CN1233586A (zh) | 1999-11-03 |
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